[sage-support] utf-8, encoding and notebook() Edit page
hi, I am working on an Ubuntu box, with firefox and UTF-8 is my system's default. [EMAIL PROTECTED]:~$ locale LANG=fr_FR.UTF-8 LC_CTYPE=fr_FR.UTF-8 LC_NUMERIC=fr_FR.UTF-8 LC_TIME=fr_FR.UTF-8 LC_COLLATE=fr_FR.UTF-8 LC_MONETARY=fr_FR.UTF-8 LC_MESSAGES=fr_FR.UTF-8 LC_PAPER=fr_FR.UTF-8 LC_NAME=fr_FR.UTF-8 LC_ADDRESS=fr_FR.UTF-8 LC_TELEPHONE=fr_FR.UTF-8 LC_MEASUREMENT=fr_FR.UTF-8 LC_IDENTIFICATION=fr_FR.UTF-8. LC_ALL= If i edit a worksheet (to add HTML) or change the name of the worksheet with an accented letter, characters are added in iso-8859-1 or 15. In the body of the worksheet and in the title, everything looks fine until a close and reopen the worksheet. I know about trac#2593, but it doesn't help Thanks for any help. Philippe --~--~-~--~~~---~--~~ To post to this group, send email to sage-support@googlegroups.com To unsubscribe from this group, send email to [EMAIL PROTECTED] For more options, visit this group at http://groups.google.com/group/sage-support URLs: http://www.sagemath.org -~--~~~~--~~--~--~---
[sage-support] Re: utf-8, encoding and notebook() Edit page
On Sun, Aug 24, 2008 at 9:01 AM, Philippe Saade [EMAIL PROTECTED] wrote: hi, I am working on an Ubuntu box, with firefox and UTF-8 is my system's default. [EMAIL PROTECTED]:~$ locale LANG=fr_FR.UTF-8 LC_CTYPE=fr_FR.UTF-8 LC_NUMERIC=fr_FR.UTF-8 LC_TIME=fr_FR.UTF-8 LC_COLLATE=fr_FR.UTF-8 LC_MONETARY=fr_FR.UTF-8 LC_MESSAGES=fr_FR.UTF-8 LC_PAPER=fr_FR.UTF-8 LC_NAME=fr_FR.UTF-8 LC_ADDRESS=fr_FR.UTF-8 LC_TELEPHONE=fr_FR.UTF-8 LC_MEASUREMENT=fr_FR.UTF-8 LC_IDENTIFICATION=fr_FR.UTF-8. LC_ALL= If i edit a worksheet (to add HTML) or change the name of the worksheet with an accented letter, characters are added in iso-8859-1 or 15. In the body of the worksheet and in the title, everything looks fine until a close and reopen the worksheet. I know about trac#2593, but it doesn't help Thanks for any help. Philippe Here is what i did to fix the Edit issue : ** go to Firefox -- Préférences -- Contenu -- Police et couleurs -- Avancé... -- Encodage par défaut : Unicode (UTF-8) ** better restart firefox This doesn't fix the issue when editing the title by clicking on it and filling the popup-box. For that, i change the title in Edit mode... Hope it will help other ùéçèà buddies :-) Philippe --~--~-~--~~~---~--~~ To post to this group, send email to sage-support@googlegroups.com To unsubscribe from this group, send email to [EMAIL PROTECTED] For more options, visit this group at http://groups.google.com/group/sage-support URLs: http://www.sagemath.org -~--~~~~--~~--~--~---
[sage-support] upgrade
Hi, I have upgraded my sage 3.0.6 to 3.1.1 using sage -upgrade. It seems to me it did not upgrade sage-banner: ./sage -- | SAGE Version 3.0.6, Release Date: 2008-07-30 | | Type notebook() for the GUI, and license() for information.| -- sage: version() 'SAGE Version 3.1.1, Release Date: 2008-08-17' Best regards, Bin --~--~-~--~~~---~--~~ To post to this group, send email to sage-support@googlegroups.com To unsubscribe from this group, send email to [EMAIL PROTECTED] For more options, visit this group at http://groups.google.com/group/sage-support URLs: http://www.sagemath.org -~--~~~~--~~--~--~---
[sage-support] Re: simplifying complex matrices
On Sun, Aug 24, 2008 at 12:20 AM, Ryan [EMAIL PROTECTED] wrote: I have the symbolic complex matrix: M=matrix([[1/((-1)^(1/4)*(I - 1)), (1 - I)*I/((-1)^(1/4)*(-1*I-1)*(I - 1))],[1/((-1)^(1/4)*(I - 1)),I/((-1)^(1/4)*(-1*I - 1))]]) This matrix should simplify to a real matrix with all entries plus or minus 1/sqrt(2), however when I use M.simplify() What about sage: M.apply_map(real) [-1/sqrt(2) 1/sqrt(2)] [-1/sqrt(2) -1/sqrt(2)] sage: M.apply_map(imag) [0 0] [0 0] Does that help any? it doesn't simplify much at all. Any thoughts? My temporary solution has been to change the base ring to CDF, but this results in some small imaginary parts in the entries due to roundoff error which is also undesirable. Thanks. --~--~-~--~~~---~--~~ To post to this group, send email to sage-support@googlegroups.com To unsubscribe from this group, send email to [EMAIL PROTECTED] For more options, visit this group at http://groups.google.com/group/sage-support URLs: http://www.sagemath.org -~--~~~~--~~--~--~---
[sage-support] simplifying complex matrices
I have the symbolic complex matrix: M=matrix([[1/((-1)^(1/4)*(I - 1)), (1 - I)*I/((-1)^(1/4)*(-1*I-1)*(I - 1))],[1/((-1)^(1/4)*(I - 1)),I/((-1)^(1/4)*(-1*I - 1))]]) This matrix should simplify to a real matrix with all entries plus or minus 1/sqrt(2), however when I use M.simplify() it doesn't simplify much at all. Any thoughts? My temporary solution has been to change the base ring to CDF, but this results in some small imaginary parts in the entries due to roundoff error which is also undesirable. Thanks. --~--~-~--~~~---~--~~ To post to this group, send email to sage-support@googlegroups.com To unsubscribe from this group, send email to [EMAIL PROTECTED] For more options, visit this group at http://groups.google.com/group/sage-support URLs: http://www.sagemath.org -~--~~~~--~~--~--~---
[sage-support] jsMath issue and solution with error code -7
Hi, i post this here for future newbies who might encounter the same problem... ** on Linux/Ubuntu 8.04, under Firefox 2 or 3, with all TexFonts installed, i kept having this error message : It looks like jsMath failed to set up properly (error code -7) for a single sage : show(x^2) command. My solution was to : * mkdir -p /home/foobar/.fonts (for user foobar) * download on of the zip file here : http://www.math.union.edu/~dpvc/jsMath/download/jsMath-fonts.html (the TeX-fonts-15.zip looks not too dark.) * unzip the .zip * restart firefox * (adjust scale size in the options of jsMaths control panel to suit my taste) Philippe --~--~-~--~~~---~--~~ To post to this group, send email to sage-support@googlegroups.com To unsubscribe from this group, send email to [EMAIL PROTECTED] For more options, visit this group at http://groups.google.com/group/sage-support URLs: http://www.sagemath.org -~--~~~~--~~--~--~---
[sage-support] Re: upgrade
Try sage: hg_scripts.pull() sage: hg_scripts.merge() and possibly sage: hg_scripts.updae() then restart sage. On Sun, Aug 24, 2008 at 2:42 AM, Bin Zhang [EMAIL PROTECTED] wrote: Hi, I have upgraded my sage 3.0.6 to 3.1.1 using sage -upgrade. It seems to me it did not upgrade sage-banner: ./sage -- | SAGE Version 3.0.6, Release Date: 2008-07-30 | | Type notebook() for the GUI, and license() for information.| -- sage: version() 'SAGE Version 3.1.1, Release Date: 2008-08-17' Best regards, Bin -- William Stein Associate Professor of Mathematics University of Washington http://wstein.org --~--~-~--~~~---~--~~ To post to this group, send email to sage-support@googlegroups.com To unsubscribe from this group, send email to [EMAIL PROTECTED] For more options, visit this group at http://groups.google.com/group/sage-support URLs: http://www.sagemath.org -~--~~~~--~~--~--~---
[sage-support] Re: simplifying complex matrices
On Sun, Aug 24, 2008 at 3:54 AM, David Joyner [EMAIL PROTECTED] wrote: On Sun, Aug 24, 2008 at 12:20 AM, Ryan [EMAIL PROTECTED] wrote: I have the symbolic complex matrix: M=matrix([[1/((-1)^(1/4)*(I - 1)), (1 - I)*I/((-1)^(1/4)*(-1*I-1)*(I - 1))],[1/((-1)^(1/4)*(I - 1)),I/((-1)^(1/4)*(-1*I - 1))]]) This matrix should simplify to a real matrix with all entries plus or minus 1/sqrt(2), however when I use M.simplify() What about sage: M.apply_map(real) [-1/sqrt(2) 1/sqrt(2)] [-1/sqrt(2) -1/sqrt(2)] sage: M.apply_map(imag) [0 0] [0 0] Does that help any? You can also use a number field, which will be very fast, but map not be so useful for whatever else you're doing: INPUT: x = polygen(QQ) K.a = NumberField(x^4 + 1) I = a^2 matrix([[1/(a*(I - 1)), (1 - I)*I/(a*(-1*I-1)*(I -1))],[1/(a*(I - 1)),I/(a*(-1*I - 1))]]) OUTPUT: [ 1/2*a^3 - 1/2*a -1/2*a^3 + 1/2*a] [ 1/2*a^3 - 1/2*a 1/2*a^3 - 1/2*a] --~--~-~--~~~---~--~~ To post to this group, send email to sage-support@googlegroups.com To unsubscribe from this group, send email to [EMAIL PROTECTED] For more options, visit this group at http://groups.google.com/group/sage-support URLs: http://www.sagemath.org -~--~~~~--~~--~--~---
[sage-support] Re: jsMath issue and solution with error code -7
I've been seeing this with the last few releases. On Sun, Aug 24, 2008 at 10:46 AM, Philippe Saade [EMAIL PROTECTED] wrote: Hi, i post this here for future newbies who might encounter the same problem... ** on Linux/Ubuntu 8.04, under Firefox 2 or 3, with all TexFonts installed, i kept having this error message : It looks like jsMath failed to set up properly (error code -7) for a single sage : show(x^2) command. My solution was to : * mkdir -p /home/foobar/.fonts (for user foobar) * download on of the zip file here : http://www.math.union.edu/~dpvc/jsMath/download/jsMath-fonts.html (the TeX-fonts-15.zip looks not too dark.) * unzip the .zip * restart firefox * (adjust scale size in the options of jsMaths control panel to suit my taste) Philippe --~--~-~--~~~---~--~~ To post to this group, send email to sage-support@googlegroups.com To unsubscribe from this group, send email to [EMAIL PROTECTED] For more options, visit this group at http://groups.google.com/group/sage-support URLs: http://www.sagemath.org -~--~~~~--~~--~--~---
[sage-support] Re: simplifying complex matrices
On Sun, Aug 24, 2008 at 11:03 AM, Ryan [EMAIL PROTECTED] wrote:
Thanks, both seem like workable options. A related question...
There are alot of different simplify commands, but not one that seems
to be effective for hyperbolic trig functions. For instance
cosh(arcsinh(3/2)) simplifies to sqrt(13)/2
but none of the simplify commands seem to produce this.
Any thoughts?
Wait a little? In the new Ginac-based Sage symbolic
code that Burcin and I are implementing right now this works
automatically:
sage: x = var('x', ns=1); S = x.parent()
sage: S(3/2).arcsinh().cosh()
sqrt(13/4)
Keep your eye on
http://trac.sagemath.org/sage_trac/ticket/3872
Ginac is a very robust fast C++ library for symbolic manipulation
that will replace most of Sage's current dependence on Maxima
by something much better. http://www.ginac.de/
Sympy doesn't automatically do the above simplification (yet):
sage: import sympy
sage: Integer = sympy.Integer
sage: sympy.cosh(sympy.asinh(3/2))
cosh(asinh(3/2))
By the way, in ginac the C++ code that defines the above simplification
is here:
if (is_exactly_afunction(x)) {
const ex t = x.op(0);
// cosh(acosh(x)) - x
if (is_ex_the_function(x, acosh))
return t;
// cosh(asinh(x)) - sqrt(1+x^2)
if (is_ex_the_function(x, asinh))
return sqrt(_ex1+power(t,_ex2));
// cosh(atanh(x)) - 1/sqrt(1-x^2)
if (is_ex_the_function(x, atanh))
return power(_ex1-power(t,_ex2),_ex_1_2);
}
It's in the file inifcns_trans.cpp in the ginac distribution.
William
--~--~-~--~~~---~--~~
To post to this group, send email to sage-support@googlegroups.com
To unsubscribe from this group, send email to [EMAIL PROTECTED]
For more options, visit this group at
http://groups.google.com/group/sage-support
URLs: http://www.sagemath.org
-~--~~~~--~~--~--~---
[sage-support] Re: numerically solving a polynomial system of equations
On Sun, Aug 24, 2008 at 12:16 PM, Michael [EMAIL PROTECTED] wrote: I have a polynomial system of 50 equations in 50 unknowns. I would like to numerically solve this system (I'm interested in complex zeros). Seems to me that if I use sage's solve, it will sttempt to solve these algebraically. Are there any funcitons in sage for solving a polynomial or non-linear system numerically. You're probably going to want to use scipy.optimize. It has a large range of sophisticated numerical optimization routines. Maybe they can be used for what you want. I've hardly used them, so I can't easily say more -- hopefully somebody who has can. sage: import scipy scisagimport scipy.optimize sage: scipy.optimize. scipy.optimize.NumpyTestscipy.optimize.broyden2 scipy.optimize.fmin_ncg scipy.optimize.moduleTNC scipy.optimize.anderson scipy.optimize.broyden3 scipy.optimize.fmin_powell scipy.optimize.newton scipy.optimize.anderson2scipy.optimize.broyden_generalized scipy.optimize.fmin_tnc scipy.optimize.nonlin scipy.optimize.anneal scipy.optimize.brute scipy.optimize.fminboundscipy.optimize.optimize scipy.optimize.approx_fprimescipy.optimize.check_grad scipy.optimize.fsolve scipy.optimize.ridder scipy.optimize.bisect scipy.optimize.cobyla scipy.optimize.golden scipy.optimize.rosen scipy.optimize.bisectionscipy.optimize.fixed_point scipy.optimize.lbfgsb scipy.optimize.rosen_der scipy.optimize.bracket scipy.optimize.fmin scipy.optimize.leastsq scipy.optimize.rosen_hess scipy.optimize.brentscipy.optimize.fmin_bfgs scipy.optimize.line_search scipy.optimize.rosen_hess_prod scipy.optimize.brenth scipy.optimize.fmin_cg scipy.optimize.linesearch scipy.optimize.test scipy.optimize.brentq scipy.optimize.fmin_cobyla scipy.optimize.minpack scipy.optimize.tnc scipy.optimize.broyden1 scipy.optimize.fmin_l_bfgs_b scipy.optimize.minpack2 scipy.optimize.zeros --~--~-~--~~~---~--~~ To post to this group, send email to sage-support@googlegroups.com To unsubscribe from this group, send email to [EMAIL PROTECTED] For more options, visit this group at http://groups.google.com/group/sage-support URLs: http://www.sagemath.org -~--~~~~--~~--~--~---
[sage-support] numerically solving a polynomial system of equations
I have a polynomial system of 50 equations in 50 unknowns. I would like to numerically solve this system (I'm interested in complex zeros). Seems to me that if I use sage's solve, it will sttempt to solve these algebraically. Are there any funcitons in sage for solving a polynomial or non-linear system numerically. --~--~-~--~~~---~--~~ To post to this group, send email to sage-support@googlegroups.com To unsubscribe from this group, send email to [EMAIL PROTECTED] For more options, visit this group at http://groups.google.com/group/sage-support URLs: http://www.sagemath.org -~--~~~~--~~--~--~---
[sage-support] Re: simplifying complex matrices
Thanks, both seem like workable options. A related question... There are alot of different simplify commands, but not one that seems to be effective for hyperbolic trig functions. For instance cosh(arcsinh(3/2)) simplifies to sqrt(13)/2 but none of the simplify commands seem to produce this. Any thoughts? Thanks again. --~--~-~--~~~---~--~~ To post to this group, send email to sage-support@googlegroups.com To unsubscribe from this group, send email to [EMAIL PROTECTED] For more options, visit this group at http://groups.google.com/group/sage-support URLs: http://www.sagemath.org -~--~~~~--~~--~--~---
[sage-support] Re: simplifying complex matrices
On Sun, Aug 24, 2008 at 8:12 PM, William Stein [EMAIL PROTECTED] wrote:
On Sun, Aug 24, 2008 at 11:03 AM, Ryan [EMAIL PROTECTED] wrote:
Thanks, both seem like workable options. A related question...
There are alot of different simplify commands, but not one that seems
to be effective for hyperbolic trig functions. For instance
cosh(arcsinh(3/2)) simplifies to sqrt(13)/2
but none of the simplify commands seem to produce this.
Any thoughts?
Wait a little? In the new Ginac-based Sage symbolic
code that Burcin and I are implementing right now this works
automatically:
sage: x = var('x', ns=1); S = x.parent()
sage: S(3/2).arcsinh().cosh()
sqrt(13/4)
Keep your eye on
http://trac.sagemath.org/sage_trac/ticket/3872
Ginac is a very robust fast C++ library for symbolic manipulation
that will replace most of Sage's current dependence on Maxima
by something much better. http://www.ginac.de/
Sympy doesn't automatically do the above simplification (yet):
sage: import sympy
sage: Integer = sympy.Integer
sage: sympy.cosh(sympy.asinh(3/2))
cosh(asinh(3/2))
By the way, in ginac the C++ code that defines the above simplification
is here:
if (is_exactly_afunction(x)) {
const ex t = x.op(0);
// cosh(acosh(x)) - x
if (is_ex_the_function(x, acosh))
return t;
// cosh(asinh(x)) - sqrt(1+x^2)
if (is_ex_the_function(x, asinh))
return sqrt(_ex1+power(t,_ex2));
// cosh(atanh(x)) - 1/sqrt(1-x^2)
if (is_ex_the_function(x, atanh))
return power(_ex1-power(t,_ex2),_ex_1_2);
}
It's in the file inifcns_trans.cpp in the ginac distribution.
I sent a patch fixing this to:
http://code.google.com/p/sympy/issues/detail?id=1037
This is what I did in sympy:
+if isinstance(arg, acosh):
+return arg.args[0]
+
+if isinstance(arg, asinh):
+return sqrt(1+arg.args[0]**2)
+
+if isinstance(arg, atanh):
+return 1/sqrt(1-arg.args[0]**2)
Ondrej
--~--~-~--~~~---~--~~
To post to this group, send email to sage-support@googlegroups.com
To unsubscribe from this group, send email to [EMAIL PROTECTED]
For more options, visit this group at
http://groups.google.com/group/sage-support
URLs: http://www.sagemath.org
-~--~~~~--~~--~--~---
[sage-support] Re: numerically solving a polynomial system of equations
1. I would recommend looking at phcpack, it is designed to exploit the special nature of large polynomial systems, however, supposedly I believe it is sometimes difficult to compile, I've never used it but it might be better suited to your problem. http://www.math.uic.edu/~jan/download.html 2. The optimize.fsolve routine may be able to do what you want, though I'm not sure how it will deal with that large a system sage: import scipy sage: from scipy import optimize sage: def f(x): return [float(x[0]**2-x[0]*x[1]-1),float(x[1]**2+x[0]*x[1]-2)] : sage: optimize.fsolve(f,[0.1r,0.1r]) array([-0.46821319, 1.66756601]) Note the float and 0.1r. scipy is not happy with sage floats or ints, so you need to make sure everything is really python types and not sage types. The initial guess is very important if you give it a starting point of [0,0] it won't converge. Also, you can give it a jacobian which for that large a system is probably a good idea. do sage: optimize.fsolve? for the arguments. On Aug 24, 12:24 pm, William Stein [EMAIL PROTECTED] wrote: On Sun, Aug 24, 2008 at 12:16 PM, Michael [EMAIL PROTECTED] wrote: I have a polynomial system of 50 equations in 50 unknowns. I would like to numerically solve this system (I'm interested in complex zeros). Seems to me that if I use sage's solve, it will sttempt to solve these algebraically. Are there any funcitons in sage for solving a polynomial or non-linear system numerically. You're probably going to want to use scipy.optimize. It has a large range of sophisticated numerical optimization routines. Maybe they can be used for what you want. I've hardly used them, so I can't easily say more -- hopefully somebody who has can. sage: import scipy scisagimport scipy.optimize sage: scipy.optimize. scipy.optimize.NumpyTestscipy.optimize.broyden2 scipy.optimize.fmin_ncg scipy.optimize.moduleTNC scipy.optimize.anderson scipy.optimize.broyden3 scipy.optimize.fmin_powell scipy.optimize.newton scipy.optimize.anderson2scipy.optimize.broyden_generalized scipy.optimize.fmin_tnc scipy.optimize.nonlin scipy.optimize.anneal scipy.optimize.brute scipy.optimize.fminboundscipy.optimize.optimize scipy.optimize.approx_fprimescipy.optimize.check_grad scipy.optimize.fsolve scipy.optimize.ridder scipy.optimize.bisect scipy.optimize.cobyla scipy.optimize.golden scipy.optimize.rosen scipy.optimize.bisectionscipy.optimize.fixed_point scipy.optimize.lbfgsb scipy.optimize.rosen_der scipy.optimize.bracket scipy.optimize.fmin scipy.optimize.leastsq scipy.optimize.rosen_hess scipy.optimize.brentscipy.optimize.fmin_bfgs scipy.optimize.line_search scipy.optimize.rosen_hess_prod scipy.optimize.brenth scipy.optimize.fmin_cg scipy.optimize.linesearch scipy.optimize.test scipy.optimize.brentq scipy.optimize.fmin_cobyla scipy.optimize.minpack scipy.optimize.tnc scipy.optimize.broyden1 scipy.optimize.fmin_l_bfgs_b scipy.optimize.minpack2 scipy.optimize.zeros --~--~-~--~~~---~--~~ To post to this group, send email to sage-support@googlegroups.com To unsubscribe from this group, send email to [EMAIL PROTECTED] For more options, visit this group at http://groups.google.com/group/sage-support URLs: http://www.sagemath.org -~--~~~~--~~--~--~---
[sage-support] Re: numerically solving a polynomial system of equations
On Sun, Aug 24, 2008 at 2:03 PM, Joshua Kantor [EMAIL PROTECTED] wrote: 1. I would recommend looking at phcpack, it is designed to exploit the special nature of large polynomial systems, however, supposedly I believe it is sometimes difficult to compile, I've never used it but ^ It is written in ADA. it might be better suited to your problem. http://www.math.uic.edu/~jan/download.html It is good when the zero locus is maybe not 0-dimensional, i.e., when there are infinitely many solutions and you want to understand them. 2. The optimize.fsolve routine may be able to do what you want, though I'm not sure how it will deal with that large a system sage: import scipy sage: from scipy import optimize sage: def f(x): return [float(x[0]**2-x[0]*x[1]-1),float(x[1]**2+x[0]*x[1]-2)] : sage: optimize.fsolve(f,[0.1r,0.1r]) array([-0.46821319, 1.66756601]) Note the float and 0.1r. scipy is not happy with sage floats or ints, so you need to make sure everything is really python types and not sage types. It's best to just do RealNumber = float; Integer = int first. Thanks Josh! The initial guess is very important if you give it a starting point of [0,0] it won't converge. Also, you can give it a jacobian which for that large a system is probably a good idea. do sage: optimize.fsolve? for the arguments. On Aug 24, 12:24 pm, William Stein [EMAIL PROTECTED] wrote: On Sun, Aug 24, 2008 at 12:16 PM, Michael [EMAIL PROTECTED] wrote: I have a polynomial system of 50 equations in 50 unknowns. I would like to numerically solve this system (I'm interested in complex zeros). Seems to me that if I use sage's solve, it will sttempt to solve these algebraically. Are there any funcitons in sage for solving a polynomial or non-linear system numerically. You're probably going to want to use scipy.optimize. It has a large range of sophisticated numerical optimization routines. Maybe they can be used for what you want. I've hardly used them, so I can't easily say more -- hopefully somebody who has can. sage: import scipy scisagimport scipy.optimize sage: scipy.optimize. scipy.optimize.NumpyTestscipy.optimize.broyden2 scipy.optimize.fmin_ncg scipy.optimize.moduleTNC scipy.optimize.anderson scipy.optimize.broyden3 scipy.optimize.fmin_powell scipy.optimize.newton scipy.optimize.anderson2scipy.optimize.broyden_generalized scipy.optimize.fmin_tnc scipy.optimize.nonlin scipy.optimize.anneal scipy.optimize.brute scipy.optimize.fminboundscipy.optimize.optimize scipy.optimize.approx_fprimescipy.optimize.check_grad scipy.optimize.fsolve scipy.optimize.ridder scipy.optimize.bisect scipy.optimize.cobyla scipy.optimize.golden scipy.optimize.rosen scipy.optimize.bisectionscipy.optimize.fixed_point scipy.optimize.lbfgsb scipy.optimize.rosen_der scipy.optimize.bracket scipy.optimize.fmin scipy.optimize.leastsq scipy.optimize.rosen_hess scipy.optimize.brentscipy.optimize.fmin_bfgs scipy.optimize.line_search scipy.optimize.rosen_hess_prod scipy.optimize.brenth scipy.optimize.fmin_cg scipy.optimize.linesearch scipy.optimize.test scipy.optimize.brentq scipy.optimize.fmin_cobyla scipy.optimize.minpack scipy.optimize.tnc scipy.optimize.broyden1 scipy.optimize.fmin_l_bfgs_b scipy.optimize.minpack2 scipy.optimize.zeros -- William Stein Associate Professor of Mathematics University of Washington http://wstein.org --~--~-~--~~~---~--~~ To post to this group, send email to sage-support@googlegroups.com To unsubscribe from this group, send email to [EMAIL PROTECTED] For more options, visit this group at http://groups.google.com/group/sage-support URLs: http://www.sagemath.org -~--~~~~--~~--~--~---
[sage-support] Re: numerically solving a polynomial system of equations
On Aug 24, 2:22 pm, William Stein [EMAIL PROTECTED] wrote: On Sun, Aug 24, 2008 at 2:03 PM, Joshua Kantor [EMAIL PROTECTED] wrote: 1. I would recommend looking at phcpack, it is designed to exploit the special nature of large polynomial systems, however, supposedly I believe it is sometimes difficult to compile, I've never used it but ^ It is written in ADA. And building the GNU Ada compiler from sources is a giant pain unless you have the GNU Ada compiler to bootstrap. I did build some phcpack binaries for x86-64 Linux and it has a tendency to segfault when run on say Debian if the binary was build on a FC8 box and vice versa. I mainly wanted an Itanium binary, but cross compiling the ada toolchain was just plainly not worth it for it. So in conclusion: great code if you can use a binary that works, if you need to build from sources it plainly sucks. The lesson learned here is not to use exotic languages since the (alleged) benefit from using Ada is far outweight by the fact that the practicality of building the code :) SNIP William Stein Cheers, Michael Associate Professor of Mathematics University of Washingtonhttp://wstein.org --~--~-~--~~~---~--~~ To post to this group, send email to sage-support@googlegroups.com To unsubscribe from this group, send email to [EMAIL PROTECTED] For more options, visit this group at http://groups.google.com/group/sage-support URLs: http://www.sagemath.org -~--~~~~--~~--~--~---
[sage-support] Re: upgrade
William Stein wrote: Try sage: hg_scripts.pull() sage: hg_scripts.merge() and possibly sage: hg_scripts.updae() sage: hg_scripts.merge() cd /home/zhang/src/sage-3.1.1/local/bin hg merge abort: repo has 3 heads - please merge with an explicit rev sage: hg_scripts.update() cd /home/zhang/src/sage-3.1.1/local/bin hg update abort: crosses branches (use 'hg merge' or 'hg update -C') then restart sage. On Sun, Aug 24, 2008 at 2:42 AM, Bin Zhang [EMAIL PROTECTED] wrote: Hi, I have upgraded my sage 3.0.6 to 3.1.1 using sage -upgrade. It seems to me it did not upgrade sage-banner: ./sage -- | SAGE Version 3.0.6, Release Date: 2008-07-30 | | Type notebook() for the GUI, and license() for information.| -- sage: version() 'SAGE Version 3.1.1, Release Date: 2008-08-17' Best regards, Bin --~--~-~--~~~---~--~~ To post to this group, send email to sage-support@googlegroups.com To unsubscribe from this group, send email to [EMAIL PROTECTED] For more options, visit this group at http://groups.google.com/group/sage-support URLs: http://www.sagemath.org -~--~~~~--~~--~--~---
[sage-support] Re: square of an inequality
I think it would be very nice to include a solve algorithm for
inequalities. To my knowledge, Mathematica does not do this, either.
Or at least, I did not find out how to do it in Mathematica after 4
years of use.
Stan
On Aug 23, 12:51 pm, Alec Mihailovs [EMAIL PROTECTED] wrote:
By the way, I just looked at Wester's article (briefly), and it seems as
if
he missed inequalities. Such things, as, say, x+y=3, x=0, y=0 for
integer
x and y, should be a part of the standard test, I think. [...]
Can SAGE do that?
I meant to solve. The answer should be either a list of points, {x=0,y=0},
{x=0,y=1} etc. - or their convex hull. That gives feasible points for
integer (linear or convex) programming problems.
I posted about that on Mapleprimes (Kindergarten). Maple can't do that using
isolve.
Alec
--~--~-~--~~~---~--~~
To post to this group, send email to sage-support@googlegroups.com
To unsubscribe from this group, send email to [EMAIL PROTECTED]
For more options, visit this group at
http://groups.google.com/group/sage-support
URLs: http://www.sagemath.org
-~--~~~~--~~--~--~---
[sage-support] Issues wrt sage 3.1.1 on linux
Hello, I upgraded my sage 3.0.6 installation using the command : sage - upgrade. Every thing seemed to go well. I then did sage --testall with the result : -- The following tests failed: sage -t devel/sage/sage/graphs/graph_generators.py sage -t devel/sage/sage/calculus/calculus.py sage -t devel/sage/sage/combinat/root_system/ weyl_characters.py Total time for all tests: 11051.6 seconds Is there any way to get more detailed info wrt to these failures? Maybe correct them in some way? The output of uname -a is : uname -a Linux yamnuska 2.6.25.14-69.fc8 #1 SMP Mon Aug 4 14:20:24 EDT 2008 i686 athlon i386 GNU/Linux TIA, Doug Nadworny --~--~-~--~~~---~--~~ To post to this group, send email to sage-support@googlegroups.com To unsubscribe from this group, send email to [EMAIL PROTECTED] For more options, visit this group at http://groups.google.com/group/sage-support URLs: http://www.sagemath.org -~--~~~~--~~--~--~---
[sage-support] Re: upgrade
William Stein wrote: On Sun, Aug 24, 2008 at 3:20 PM, Bin Zhang [EMAIL PROTECTED] wrote: William Stein wrote: Try sage: hg_scripts.pull() sage: hg_scripts.merge() and possibly sage: hg_scripts.updae() sage: hg_scripts.merge() cd /home/zhang/src/sage-3.1.1/local/bin hg merge abort: repo has 3 heads - please merge with an explicit rev It says repo has 3 heads, please merge, so you have to explicitly merge. Do hg_sage.heads() to see a list of heads, then do sage: hg_sage.merge(one_of_the_head_numbers) Thanks. It works. Regards, Bin sage: hg_scripts.update() cd /home/zhang/src/sage-3.1.1/local/bin hg update abort: crosses branches (use 'hg merge' or 'hg update -C') then restart sage. On Sun, Aug 24, 2008 at 2:42 AM, Bin Zhang [EMAIL PROTECTED] wrote: Hi, I have upgraded my sage 3.0.6 to 3.1.1 using sage -upgrade. It seems to me it did not upgrade sage-banner: ./sage -- | SAGE Version 3.0.6, Release Date: 2008-07-30 | | Type notebook() for the GUI, and license() for information.| -- sage: version() 'SAGE Version 3.1.1, Release Date: 2008-08-17' Best regards, Bin --~--~-~--~~~---~--~~ To post to this group, send email to sage-support@googlegroups.com To unsubscribe from this group, send email to [EMAIL PROTECTED] For more options, visit this group at http://groups.google.com/group/sage-support URLs: http://www.sagemath.org -~--~~~~--~~--~--~---
[sage-support] Re: Issues wrt sage 3.1.1 on linux
Hi Michael, I looked in the tmp/test.log file and found : . . sage -t devel/sage/sage/graphs/graph_generators.py *** *** Error: TIMED OUT! *** *** ESC[?1034h*** *** Error: TIMED OUT! *** *** . . . sage -t devel/sage/sage/calculus/calculus.py *** *** Error: TIMED OUT! *** *** ESC[?1034h*** *** Error: TIMED OUT! *** *** . . sage -t devel/sage/sage/combinat/root_system/weyl_characters.py*** *** Error: TIMED OUT! *** *** ESC[?1034h*** *** Error: TIMED OUT! *** *** . . So it does seem that the tests Timed Out as you say. I never thought of my system as being slow, but I'm new to sage. Do you have any recommendations as to how I might run the tests with extended time limits? TIA, Doug Nadworny On Aug 24, 5:34 pm, mabshoff [EMAIL PROTECTED] dortmund.de wrote: On Aug 24, 3:36 pm, doug5y [EMAIL PROTECTED] wrote: Hello, Hi Doug, I upgraded my sage 3.0.6 installation using the command : sage - upgrade. Every thing seemed to go well. I then did sage --testall with the result : -- The following tests failed: sage -t devel/sage/sage/graphs/graph_generators.py sage -t devel/sage/sage/calculus/calculus.py sage -t devel/sage/sage/combinat/root_system/ weyl_characters.py Total time for all tests: 11051.6 seconds Could you post the output from the failures? Your system seems to be a slow one and all three of the above could have simply timed out. Is there any way to get more detailed info wrt to these failures? Maybe correct them in some way? The output of uname -a is : uname -a Linux yamnuska 2.6.25.14-69.fc8 #1 SMP Mon Aug 4 14:20:24 EDT 2008 i686 athlon i386 GNU/Linux TIA, Doug Nadworny Cheers, Michael --~--~-~--~~~---~--~~ To post to this group, send email to sage-support@googlegroups.com To unsubscribe from this group, send email to [EMAIL PROTECTED] For more options, visit this group at http://groups.google.com/group/sage-support URLs: http://www.sagemath.org -~--~~~~--~~--~--~---
[sage-support] Re: square of an inequality
On Aug 24, 5:43 pm, Stan Schymanski [EMAIL PROTECTED] wrote: I think it would be very nice to include a solve algorithm for inequalities. To my knowledge, Mathematica does not do this, either. Or at least, I did not find out how to do it in Mathematica after 4 years of use. In Mathematica, there is Reduce: Reduce[expr,vars] reduces the statement expr by solving equations or inequalities for vars and eliminating quantifiers. JM Stan --~--~-~--~~~---~--~~ To post to this group, send email to sage-support@googlegroups.com To unsubscribe from this group, send email to [EMAIL PROTECTED] For more options, visit this group at http://groups.google.com/group/sage-support URLs: http://www.sagemath.org -~--~~~~--~~--~--~---
